Excavating-machine.



. No. 759,764; PATENTED MAY 10, 1904;.

D. H. SNYDER.

EXGAVATING MACHINE.

APPLICATION FILED JULY 13, 1903.

N0 MODEL. 6 SHEETS-SHEET 1.

W1 T/VESSES" fA/VENTOR ,illuriI No. 759,764.. PATENTBD MAY 10-, 1904.

1).. H. SNYDER.

EXGAVATING MACHINE.

, APPLIOATION FILED JULY 13, 1903. 30 MODEL. 6 SHEETS-SHEET 2 I fl r11"No. 759,764, PATENTBD MAY 10, 1904* D. H. SNYDER.

EXGAVATING MACHINE.

APPLIUATION FILED JULY 13. 1903. H0 MODEL. 6 SHEETS-SHEET 3.

WITNESSES: [/VVE/VTOR I I .7 y

\ A Jamey m: uonms Pn'uns w. movouwmwgsmumou. 0 c.

PATENTED MAY. 10, 1904:. D. H. SNYDER- EXUAVAT'ING MACHINE.

APPLIOATION FILED JULY 1a, 1903.

e sums-amm- 4.

N0 MODEL.

WITNESSES.-

NVENTOR- "fia'llani 029121;

TH: uonms Plum 0:. MO'ID-LDYNG. WASHIMGYO'L nc.

' No. 759,764. PATBNTED MAY 10, 1904.

n. H. SNYDER.

BXGAVATING MACHINE.

uruouxon rmm JULY 13. ms. no MODEL. e SHEETS-$111231 s.

W T/VESSES:

Attorney.

I UNITED STATES Fatented May 10, 1904.

P TENT OFFICE.

DILLON H. SNYDER, OF EAST TOLEDO, OHIO, AS SIG-NOR OF ONE-HALF TO PAULI. SAW YER, OF FINDLAY, OHIO.

EXCAVATlNG-MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 759,764, dated May 10,1904.

Application filed July 13, 1903. Serial lie- 165,384. (No model.) v

To all ZUILOTJI/ it may concern.-

Be it known that I, DILLON H. SNYD an, a citizen of the United States,residing at East Toledo, in the county of Lucas and State of Ohio,

have in vented certain new and useful Improvements inEXcavating-hlachines; and I do cleclare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it apro pertains to make and use thesame.

This invention relates to improvements in excavating-machines.

The object of the invention is to provide a machine of this characterwhich may be readily I 5 moved from place and which will beself-propolling, means being also provided whereby the operatingmechanism may be rotated. to bringthe shovel into anyposition,and,further, to provide mechanism for actuating and controllingthe shovel.

A further object is to provide an excavating-machine which will bestrong, comparatively simple in construction, e'liicient, and easilyoperated.

2 5 With these and other objects in view the invention consists ofcertain novel features of construction, combination, and arrangement ofparts, as will be more fully described, and particularly pointed out inthe appended claims, reference being had to the accompanying drawings,in which Figure 1 is a side elevation of the machine. Fig. 2 is a rearend elevation with the engine boiler removed. Fig. 3 is a centrallongitu dinal sectional view. Fig. 4 is a horizontal sectional view onthe line 4 t of Fig. 1. Fig. 5 is a top plan view of a portion of theframe, showing the upper beams of the same, the sliding cross-head, andthe manner of connect- 4 ing the scoop-levers and operating-cables withthe cross-head. Fig. 6 is a top plan view of the scoop,.showing themanner of connecting the operating-levers with the same. Fig. 7 is arear view of the scoop. Fig. 8 is an enlarged detail side view of one ofthe drivinggears and the parts connected therewith. Fig. 9 is a similarview of the opposite side. Fig. 10 is a horizontal sectional viewthrough one of the drive-shafts, winding-drum, gears, and

clutch mechanism carried by the same. Fig. 5 0 11 is a detail view ofthe clutch-plates. Fig.

12 is a similar view showing portions of the parts 53 and 56 and theirlocking connection.

Referring more particularly to the drawings, 1 denotes a suitable baseor frame, preferably rectangular in shape and constructed from I-beamssecurely bolted together and supported upon front and rear wheeledtrucks 2 and 3. Upon the base 1 is mounted a turntable or circular track4:, on the outer side or 60 edge of which is formed an annular series ofteeth 5.

Above the turn-table 4 is arranged a superstructure 6, the face of whichcomprises a turn table 1, Formed of I-beams 7 securely boltedtogether,and tothe under side of said beams are secured bearings,in which arejournaled grooved rollers or wheels 8, which are adapted to engage andtravel on the circular track or turn table 4 and to support the su- 7periinposed structure 6. On the beams 7 is arranged a series oitransvcrsely-disposed I- beams 9, and on these beams near their outerends are arranged two longitudinally-d isposed beams 10. On the beams 10are mounted bearings 12, 13, and 1a, in which are journaled the driveshafts of the operating and propelling mechanism.

Below the beams 7 and securely bolted to the same are arranged a seriesof transverselydisposed beams 15, and above the beams 7 and supportedthereby is a derrick-frame consisting of upwardly projecting forwardlyinclined booms 16, upwardly-inclined rear bracebeams 17, connected totheir upper ends by a 5 horizontal transversely-arranged beam 17'.Horizontally-(iisposed beams 18 connect the booms 16 with the beams 17.

i 19 denotes diagonally-arranged brace-beams connected at their upperends to the upper 9 ends of the braces 17 and at their lower ends to theforward ends of the beams 7.

20 denotes upright beams connected at their upper and lower ends to thebeams 18 and beams 7 respectively, and 21 denotes diagonally-arrangedMace-beams connected at their lower ends to the outer ends or the beams7 and at their upper ends to the booms 16.

22 denotes the shovel or scoop, which may be of the construction shownin the drawings or of any other suitable construction, and it isconnected to the lower end of a handle or arm 23 and is supported andadapted to be raised and lowered by two cables 24, the outer ends ofwhich are fastened to the upper ends of plates or bars 25,which have apivotal connection at their lower ends with the handlesocket of thescoop. The cables 24 are rove through pulleys 26, journaled in the endsof the booms 16, and through pulleys 27, journaled on the plates 25,thence through the pulleys 26 again, and then to a winding-drum 28,mounted on a transverse shaft 29, journaled in the bearings 14.

30 denotes a cable connected at one end to a link, which is pivoted tothe upper end of the dipper-handle. The opposite end of the cable iswound upon a drum 31, mounted upon a shaft 32, journaled in the bearings12.

33 denotes two arms or levers pivotally connected at their lower ends tothe scoop and having a pivotal connection at their upper ends with across-head 34, slidably mounted on the beams 18. Cables are connected attheir upper ends to the forward side of the cross-head 34 and pass overguide-pulleys 36, journaled on the upright beams 20, the lower ends ofthe cables 35 being connected to winding-drums 37, mounted on each endof a transverse shaft 38, journaled in bearings 39 on the beams 7 nearthe forward end of the machine. A cable 40 is connected. to the rearside of the cross-head 34 at about the center of the same and passesrearwardly over a guide-pulley 41, thence forwardly and downwardly,andis connected to a winding-drum 42, loosely mounted on the maindrive-shaft 43, journaled in bearings 13 on the beams 10.

44 denotes a vertically-disposed shaft journaled in bearings immediatelybelow the shaft 32 and forming the pivot around which the structure 6turns. On the lower end of the shaft 44 is fixed a bevel gear-pinion 45,which meshes with a bevel-gear 46, mounted on a shaft 47, journaled inbearings below the beams of the base 1. On the shaft 47 is also mounteda sprocket-pinion 48, which is connected by a sprocket-chain 49 to asprocket-wheel 50, mounted on the axle of the forward truck 2.

-On the upper end of the shaft 44 is mounted a bevel gear-wheel 51.

52 denotes a bevel gear-pinion loosely mounted on the drum 31, which isloosely mounted on the shaft 32, and on one side of the pinion is formedan elongated collar or annular flange 52, on which is keyed to slide aclutch-plate 53, having laterally-projecting beveled teeth 54, which areadapted to be brought into engagement with clutch-teeth 55, formed onthe face of a spur gear-wheel 56, fixedly mounted on the shaft 32, sothat when the clutch-plate 53 is shifted to bring the teeth 54 thereoninto engagement with the teeth 55 on the spur-gear 56 the pinion 52 willbe driven, which will turn the gear 51 and rotate the shaft 44 andpinion 45 to drive the shaft 47, motion from which will be transferredthrough the medium of the sprocket gears and chain to the axle of thefront truck to propel the machine forwardly, suitable means beingprovided for reversing this mechanism and driving the machine backward.The reversing mechanism consists of a bevel gear-pinion 57, looselymounted on the shaft 32 at the opposite end of the drum 31 and adaptedto mesh with the gear-wheel 51. The pinion 57 is rotatably locked to theshaft 32 by means of a clutch 58, keyed to the shaft and adapted to bemoved into and out of engagement with the pinion by means of aclutchshifting lever 59, which may be of any suitable construction. Thearrangement of the pinion on the opposite side of the gear 51 will drivesaid gear in a direction opposite from that in which it is driven by thepinion 52. Consequently the propelling mechanism affected by the gear 51will be driven in opposite directions, which will cause themachine tomove backward, as will be understood.

6O denotes a friction-disk formed integral with one end of the drum 31and arranged in juxtaposition to the spur gear-wheel 56. A clamping-band61 is arranged around the periphery of the friction-disk 60, and on theworking face of said band are fixed a series of wear plates or shoes 62.

63 denotes a bell-crank lever pivoted on the end of a short shaft64,which passes through and is journaled in the spur gear-wheel 56. Toone arm of the bell-crank lever is connected one end of theclamping-band 61, and the opposite end of the band is connected to theother arm of the bell-crank lever by an adjustable connection 65,preferably in the form of aturnbuckle. On the opposite end of the shortshaft 64 and on the outer face of the gear-wheel 56 is fixed a shortcrank-arm 66, which is connected by a link 67 to a-block68, which isadapted to slide in a groove or guideway 69, formed in the face of thespur gearwheel 56. To the opposite end of the sliding block 68 isconnected a lever 7 O, the opposite end of which is pivotally connectedto a sleeve 71, slidably mounted upon the shaft 32 by means of apin-and-slot connection with the same, as shown at 72. A coiled spring73 is arranged upon the shaft 32 between the face of the gear-wheel 56and the end of the sleeve, the tension of which is exerted to force thesleeve outwardly and away from the wheel. Ashifting device is arrangedbetween the opposite end of the sleeve and the bearing 12, whereby thesleeve may be shifted or moved in toward the wheel 56. The shiftingdevice consists of a disk 74, loosely mounted on the shaft 32 andhavinga bevel or cam face which is adapted to engage the cam-face of aboss or projection 75 on the bearing 12, as shown, so

-to tilt the scoop.

that the turning of the disk 7 1 will force the same and the sleeve 71inwardly, thereby raising block 68, turning the crank-arm 66, androcking the short shaft 6 1, which will turn the bell-crank leve1g63,causing the same to tighten the band 61 on .the friction-disk and causesaid disk and the drum 31 to .rotate with thespur gear-wheel and wind upthe cable30 A handle or lever 7 6 of any suitable constructionis fixedto the disk 74 to turn the same. A spur gear pinion v7 7 is mounted onthe opposite end of the shaft 32 and is in mesh with a similar pinion78, loosely mounted on the shaft 38, on which are fixedly mounted thewinding -drums 37. The pinion? 8 is adapted to be locked to the shaft 38to turn the same by means of a cone frictionclutch 79,which is keyed toslide on the shaft 38 and to be moved into engagement with thegear-pinion 7 8 by means of a shifting-lever to rotate the shaft,38 andthe drums 37 which will wind up the cables 35, thereby drawing thecross-head 3 1 forward and forcing out the lever 33 and the scoop 22,the arrangement of these parts being hereinbefore described.

Having described the propelling and operating mechanism connected withand driven by the forward drive-shaft 38, I will now describe thatdriven by the rear drive-shaft 29. 1 81 denotes a vertically-disposedshaft journaled in bearings formed'on the transverse beams 9 and 15. Onthe.v lower end of the shaft is fixed a spur gear-pinion 82, whichmeshes with the annular series of teeth 5, formed on the turn-table 1.On the upper end of the shaft 81 is mounted a bevel gearwheel 83, whichis in mesh with a bevel gearpinion 84:, loosely mounted on thewindingdrum 28,-wh1ch 1S 1n turn loosely mounted on the shaft 29 On oneside of the pinion 84 is formed an elongatedcollar or annularfiange,

on which is keyed to slide a clutch-plate 85,

having laterally-projecting beveled teeth 86, which are adapted to bebrought into engagement with clutch-teeth 87, formed on the sides of aspur gear-wheel 88, fixedly mounted on the shaft 29, so that when theclutch-plate is shifted to bring the teeth thereon into on gagement withthe teeth on thegear-wheel the gear-pinion 8 1 will be rotated. whichwill rotate the bevel gear-wheel83and the gearpinion 82, causing thesame to travel around the turn-table and turn the stri1cture6 in onedirection. A reverse movementof the structure or a movementin theopposite direction is accomplished by means of a bevel gearpinion 89,loosely mounted on the shaft 29 at the opposite end of the drum 28 andin mesh with the bevel gear-wheel 83 at the opposite ranged on the shaft29 and is adapted to be shifted bya forked lever 91 to lock the pinion89 on the shaft 29 to turn therewith and rotate the gear 83 and pinion82 in a direction opposite tothe former direction to reverse themovement ofthe structure 6. 1

On the end of the drum 28 adjacent to .the spur gear-wheel 88 is formeda friction-disk 92, around which is arranged a clan1 ing-band 93, theoperation and arrangement of which is the same as that described inconnection with the disk 60 on the drum 31, so that the description ofthe one will serve for both. The drum 28 being integrally connected tothefriction-disk 92 and driven by the gear 88 through the band 93 willwind up the cables 24:, thereby raising the scoop and forcing the sameinto the bank of earth, as willbe understood.

Any suitable means may be employed to shift the cl etch-plates and intoengagement with the teeth on the spur-gears 56 and 88, that shown in thedrawings consistingof horizontally-disposed shafts 9 1, mounted on theframework and having right-angularly disposed arms 95, in the ends ofwhich are mounted friction -rollers 96. are provided with levers 97,whereby they may be rocked to bring the friction-rollers 96 on the armsinto engagement with the clu'tclrplates 53 or 85 and .force the sameinto engagement with the gears 56 or 58, The teeth on the plates and 85havebeveled .engagingfaces, so that upon release of pres sure on theplates the same will be thrown out of engagement with the clutch-teethon the gears 56 or 58, as will be understood.

.On theend of the main drive-shaft 13 is fixedly mounted a spur-gearpinion 98, which is arranged between and is in mesh with both the spurgearwheels 16 and 88 to drive the same. On the ends of the shaft 4c3arefixed crank disks or wheels 99, to the eccentricallyarranged wrist-pinsof which are connected the pitman-rods ofengines of any suitable typecarried by the framework, butnot shown in the drawings, as they do notform, a part of the present invention. 1

On the shaft 13 is loosely mounted the winding-- drum 42, on which thecable is wound that draws the cross-head 34 and the levers 33 of thescoop back into place. One end of the drum is arranged to receive a conefrietion-clutch 100, which is keyed to slide upon the shaft 43 and isadapted to be brought into engagement with the drum 12 by means of ashifting device similar inconstruction to the shifting device used totighten the frictionband 61 and consisting of a disk 101, looselymounted on the shaft 13 and having a bevel or cam face which is adaptedto engage the cam-face of a boss or projection 102-, formed on thebearing 13, so that the turning of the ried bythe disk 101, whereby thesame may be operated.

104 denotes a boiler which may be carried by the rear end of thestructure 6 and supported upon the beams 7.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention. 7

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

1. In an excavating-machine, the combination with a suitablesupporting-base, of a superimposed structure rotatably mounted on saidbase, forwardly-inclined booms su pported by said structure, a scoop orshovel having a rigid upwardly-projecting arm, operating-leverspivotally connected to said scoop at their lower ends, a cross-headslidingly mounted in the upper portion of said structure and pivotallyconnected to the upper ends of said operating-levers and means foroperating said levers and scoop, substantially as described.

2. In an excavating-machine, the combination with a wheeledsupporting-base of a superimposed structure,rotatably mounted upon saidbase, means for rotating said structure and means for propelling saidmachine,booms supported by said structure, a scoop or shovel supportedby said booms, means for raising and lowering and tilting said scoop,operatinglevers pivotally connected at their lower ends to said scoop, asliding cross-head mounted in the upper portion of said structure andpivotally connected to the upper ends of said operating-levers, meansfor reciprocating said cross-head to project and retract said scoop,substantially as described.

3. In an excavating-machine, the combination of a supporting-frame, adipper, a winding-drum having a friction-surface, a shaft on which thedrum is loosely mounted, pinions loosely mounted respectively upon thedrum and shaft, a sliding clutch-plate carried by the drum-pinion, aclutch element rigidly mounted on the shaft, means for shifting theclutch-plate into and out of engagement with the clutch element, aband-brake adapted to engage the friction-surface of the drum, anactuating element for the band-brake mounted upon the clutch element,means for operating said actuating element, gearing controlled by thepinions upon the drum and shaft, and a cable connecting the winding-drumwith the dipper, substantially as described.

4. In a self-propelled excavating-machine, the combination with awheeled supportingbase carrying a track, of a superimposed structurecarried by a turn-table mounted to turn on said track, means for turningsaid structure in either direction, and means for propelling saidmachine forwardly or backwardly, a scoop or shovel supported in saidstructure and having a rigid arm, cables arranged to support said scoop,operating-levers connected to said scoop, a cross-head connected to theopposite end of said levers and adapted to slide in said frame and toproject and retract said levers and scoop, cables arranged toreciprocate said head, and a cable arranged to tilt said scoop-arm andscoop, drive-shafts mounted in said structure, winding drums looselymounted on said drive-shafts, clutch mechanism for throwing said drumsinto and out of gear with said drive-shafts and means for operating saidclutch mechanism, substantially as described.

5. In an excavating-machinathe combination of a supportingframe, adipper, a winding-drum having a friction-surface, a shaft on which thedrum is loosely mounted, a pinion loosely mounted upon the drum, asliding clutch-plate carried by said pinion, a clutch element rigidlymounted on the shaft, means for shifting the clutch-plate into and outof engagement with said clutch element, a bandbrake adapted to engagethe friction-surface of the drum, an actuating element for said brakecarried by the clutch element, means for operating the said actuatingelement, and a cable connecting the drum with the dipper, substantiallyas described.

6. In an excavating apparatus, the combination of a supportingframe, aswinging dipper, driving mechanism, a vertical shaft actuated by saiddriving mechanism, a horizontal shaft, a drum upon said horizontal shaftprovided with a friction surface, pinions loosely mounted respectivelyupon the frame and horizontal shaft, a gear upon the vertical shaft inmesh with said pinion, a sliding clutchplate carried by the drum-pinion,a clutch element fixed to the shaft and adapted to be engaged by saidclutch-plate, means for shifting the clutch-plate into engagement withsaid clutch element, a brake-band to engage the friction-surface of thedrum, an actuating element therefor mounted upon the clutch element,means for operatingsaid actuating element, means for fixing the loosepinion on the horizontal shaft upon said shaft, and a cable connectingthe drum with the dipper, whereby the latter may be manipulated,substantially as described.

7. In an excavating-machine, the combination of a supporting-frame, aswinging dipper, controlling mechanism for the dipper comprising avertical shaft provided with a gear, a horizontal shaft, a drum looseupon the horizontal shaft provided with a loose gear in mesh with thegear upon the vertical shaft, a sliding clutch device carried by saidloose gear, a fixed clutch element upon the horizontal shaft, meanscoacting therewith to rigidly connect the drum with the horizontalshaft, and a cable or like connection connecting the dipper with thedrum.

8. In a machine of the character described, the combination of asupporting-frame carrying a trackway and a rack, a turn-table providedwith rollers traversing said trackway, a swinging dipper upon theturn-table, controlling mechanism for the dipper and turntablecomprising a vertical shaft having a pinion engaging said rack, andcarrying a gear, a horizontal shaft, a cable connecting the dipper withthe drum, gears loosely mounted upon the drum and horizontal shaft andmeshing with the gear on the vertical shaft, a clutch element slidablymounted upon the drum-pinion, a clutch element fixed to the horizontalshaft and adapted to be engaged by said clutch element on the pinion,means for adjusting the said slidable clutch element, a band-brake toengage the drum, an actuating device therefor mounted upon a fixedclutch element, means for actuating said actuating element, means forfixing the loose pinion of the horizontal shaft upon said shaft, anddriving mechanism, whereby the parts may be operated to simultaneouslylower and raise the dipper and swing the turn-table in either direction,substantially as described.

9. In an excavating apparatus, the combination of a supporting-framecarrying driving mechanism, a turn-table mounted upon saidsupporting-Frame, a dipper having a projecting-arm, forwardly-inclinedbooms carried by the turn-table, a cross-head slidably mounted upon theturn-table, operating-levers connecting said cross-heads with thedipper, cables suspended from the booms and connected to the dipper, asecond cable connected to the arm of the dipper, cables connected to thecross-heads, and sets of gearing operated from the said drivingmechanism for winding and unwinding said cables, one of said sets ofmechanisms being operatively connected to rotate the turn-table upon thesu pporting-frame, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

DILLON H. SNYDER. Witnesses:

DANIEL H. J AMES, H. J. Roi-Ins.

